A microscopic view of organic sample sputtering

A. Delcorte; P. Bertrand; B. J. Garrison

doi:10.1016/S0169-4332(02)00724-9

A microscopic view of organic sample sputtering

A. Delcorte, P. Bertrand, B. J. Garrison

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Molecular dynamics simulations are performed in order to understand the fragmentation and emission mechanisms of kDa chain segments when a polymer (polystyrene) is bombarded by a keV particle (Ar). The calculated energy spectra of small fingerprint fragments and kDa chain segments are compared to experimental distributions. The results show that the ejection of small fragments is primarily induced by interatomic collisions. In contrast, vibrational excitation of the polymer plays a major role in the emission of kDa chain segments.

Original language	English (US)
Pages (from-to)	166-169
Number of pages	4
Journal	Applied Surface Science
Volume	203-204
DOIs	https://doi.org/10.1016/S0169-4332(02)00724-9
State	Published - Jan 15 2003

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/S0169-4332(02)00724-9

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title = "A microscopic view of organic sample sputtering",

abstract = "Molecular dynamics simulations are performed in order to understand the fragmentation and emission mechanisms of kDa chain segments when a polymer (polystyrene) is bombarded by a keV particle (Ar). The calculated energy spectra of small fingerprint fragments and kDa chain segments are compared to experimental distributions. The results show that the ejection of small fragments is primarily induced by interatomic collisions. In contrast, vibrational excitation of the polymer plays a major role in the emission of kDa chain segments.",

author = "A. Delcorte and P. Bertrand and Garrison, {B. J.}",

note = "Funding Information: The financial support of the National Science Foundation through the Chemistry Division, the CRIF program and the MRI program are gratefully acknowledged by AD and BJG. Additional computational resources were provided in part by the IBM Selected University Resource Program and the Center for Academic Computing of Penn State University. AD also acknowledges the Belgian Fonds National pour la Recherche Scientifique for financial support. The ToF-SIMS equipment was acquired with the support of the R{\'e}gion Wallonne and FRFC-Loterie Nationale of Belgium. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",

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doi = "10.1016/S0169-4332(02)00724-9",

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T1 - A microscopic view of organic sample sputtering

AU - Delcorte, A.

AU - Bertrand, P.

AU - Garrison, B. J.

N1 - Funding Information: The financial support of the National Science Foundation through the Chemistry Division, the CRIF program and the MRI program are gratefully acknowledged by AD and BJG. Additional computational resources were provided in part by the IBM Selected University Resource Program and the Center for Academic Computing of Penn State University. AD also acknowledges the Belgian Fonds National pour la Recherche Scientifique for financial support. The ToF-SIMS equipment was acquired with the support of the Région Wallonne and FRFC-Loterie Nationale of Belgium. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2003/1/15

Y1 - 2003/1/15

N2 - Molecular dynamics simulations are performed in order to understand the fragmentation and emission mechanisms of kDa chain segments when a polymer (polystyrene) is bombarded by a keV particle (Ar). The calculated energy spectra of small fingerprint fragments and kDa chain segments are compared to experimental distributions. The results show that the ejection of small fragments is primarily induced by interatomic collisions. In contrast, vibrational excitation of the polymer plays a major role in the emission of kDa chain segments.

AB - Molecular dynamics simulations are performed in order to understand the fragmentation and emission mechanisms of kDa chain segments when a polymer (polystyrene) is bombarded by a keV particle (Ar). The calculated energy spectra of small fingerprint fragments and kDa chain segments are compared to experimental distributions. The results show that the ejection of small fragments is primarily induced by interatomic collisions. In contrast, vibrational excitation of the polymer plays a major role in the emission of kDa chain segments.

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VL - 203-204

SP - 166

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JO - Applied Surface Science

JF - Applied Surface Science

ER -

A microscopic view of organic sample sputtering

Abstract

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